Tridib Ranjan Mitra
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The Order odonata is popularly known as dragonflies. These insects are famous for their power to control the populations of noxious insects viz. mosquitos, termites, flies, aphids etc. They occur all over the world. The state Meghalaya is situated in the North-eastern part of India. It was created inj 1972; previous to this it was within Assam along with Arunachal Pradesh, Mizoram, Manipur, Nagaland. Its physiography is based on three hills – ...
Eastern India, in the present article, covers parts of the state of Assam, Bihar Sikkim and West Bengal. Physiographically Assam, North Bihar and Lower West Bengal (South of Darjeeling) belong to the Great Plains of India. In this there is no definite physiographic barrier to divide it further, though the eastern part is more humid than the western part. Rainfall increases steadily as one moves from the West to the East, rising from about 200 cms to about 400 cms ...
Dragonflies constitute the order Odonata. It is relatively a small order of insects and is being represented by three suborders viz., Zygoptera, Anisozygoptera and Anisoptera. These suborders are further divided into twenty seven families encompassing about seven thousand (7000) species and subspecies. These are cosmopolitan in distribution and are abundant in the tropics especially available in the vicinity of aquatic bodies. These insects are noteworthy for ...
The present book contains short description, geographical distribution and note on habit and habitats of 119 species of Indian dragonflies (Odonata). It contains coloured photographs either taken from nature or in laboratory and coloured sketches of important features of the species along with black & white diagrams, keeping in mind the conditions of specimens after post mortem change in colours. Dragonflies are very primitive group of insects. Technically ...